CodeYourFuture · KptCnyt · Sep 19, 2022 · Sep 19, 2022 · Sep 19, 2022 · Sep 19, 2022
diff --git a/1-exercises/A-undefined/exercise.js b/1-exercises/A-undefined/exercise.js
@@ -10,27 +10,27 @@
 */
 
 // Example 1
-let a;
+let a; // There is nothing equal with variable "a"
 console.log(a);
 
 
 // Example 2
 function sayHello() {
-    let message = "Hello";
+    let message = "Hello";//  This function does not return anything, so definition is not enough.
 }
 
 let hello = sayHello();
-console.log(hello);
+console.log(hello);// Variable defined but function must be defined too.
 
 
 // Example 3
 function sayHelloToUser(user) {
     console.log(`Hello ${user}`);
 }
 
-sayHelloToUser();
+sayHelloToUser(); // There must be a value inside of the paranthesis to make our function defined.
 
 
 // Example 4
 let arr = [1,2,3];
-console.log(arr[3]);
+console.log(arr[3]); // The index has been given is not existing or NOT DEFINED in the variable
diff --git a/1-exercises/B-while-loop/exercise.js b/1-exercises/B-while-loop/exercise.js
@@ -6,7 +6,13 @@
 */
 
 function evenNumbers(n) {
-    // TODO
+    let output = [];
+    let i =0;
+    while(output.length<n){
+        output.push(i);
+        i=i+2
+    }
+    console.log(output)
 }
 
 evenNumbers(3); // should output 0,2,4

diff --git a/1-exercises/C-while-loop-with-array/exercise.js b/1-exercises/C-while-loop-with-array/exercise.js
@@ -17,7 +17,13 @@ const BIRTHDAYS = [
 ];
 
 function findFirstJulyBDay(birthdays) {
-    // TODO
+    let i = 0;
+    while(i<birthdays.length){
+        if(birthdays[i].startsWith("July")===true){
+            return birthdays[i]
+        }
+        i++
+    }
 }
 
 console.log(findFirstJulyBDay(BIRTHDAYS)); // should output "July 11th"
diff --git a/1-exercises/D-do-while/exercise.js b/1-exercises/D-do-while/exercise.js
@@ -7,7 +7,17 @@
 */
 
 function evenNumbersSum(n) {
-    // TODO
+    let sum = 0;
+    let num = 0;
+    let counter = 0;
+    do {
+        sum += num;
+        num += 2;
+        counter++;
+
+    } while (counter<n);
+
+    return sum;
 }
 
 console.log(evenNumbersSum(3)); // should output 6

diff --git a/1-exercises/E-for-loop/exercise1.js b/1-exercises/E-for-loop/exercise1.js
@@ -6,9 +6,10 @@
 
 
 // Change the below code to use a for loop instead of a while loop.
-let i = 0;
-while(i < 26) {
+
+for(let i = 0; i<26;i++){
     console.log(String.fromCharCode(97 + i));
     i++;
 }
+
 // The output shouldn't change.
diff --git a/1-exercises/E-for-loop/exercise2.js b/1-exercises/E-for-loop/exercise2.js
@@ -27,7 +27,9 @@ const AGES = [
 ];
 
 // TODO - Write for loop code here
-
+for(let i = 0;i<5;i++){
+    console.log(`${WRITERS[i]} is ${AGES[i]} years old`) 
+}
 /*
 The output should look something like this:
 

diff --git a/1-exercises/F-for-of-loop/exercise.js b/1-exercises/F-for-of-loop/exercise.js
@@ -10,7 +10,14 @@ let tubeStations = [
     "Oxford Street",
     "Tottenham Court Road"
 ];
+for(let i of tubeStations){
+    console.log(i)
+}
 
 
 // TODO Use a for-of loop to capitalise and output each letter in the string seperately.
 let str = "codeyourfuture";
+
+for(let i of str){
+    console.log(i.toUpperCase())
+}
diff --git a/2-mandatory/1-weather-report.js b/2-mandatory/1-weather-report.js
@@ -12,7 +12,11 @@
 */
 
 function getTemperatureReport(cities) {
-    // TODO
+    let output = []
+    for(let i of cities){
+    output.push(`The temperature in ${i} is ${temperatureService(i)} degrees`) 
+}
+return output
 }
 
 

diff --git a/2-mandatory/2-retrying-random-numbers.js b/2-mandatory/2-retrying-random-numbers.js
@@ -5,13 +5,18 @@
 
 // This function shouldn't be changed
 function generateRandomNumber() {
-    console.log("Generating number...");
+    console.log("Generating number...")
     return Math.round(Math.random() * 100);
-}
-
-function getRandomNumberGreaterThan50() {
-    // TODO - implement using a do-while loop
-}
+ }
+
+ function getRandomNumberGreaterThan50() {
+    let numbersInArray = []
+    do{
+        numbersInArray = generateRandomNumber()
+    }while(numbersInArray<51)
+    return numbersInArray
+ }
+
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 

diff --git a/2-mandatory/3-financial-times.js b/2-mandatory/3-financial-times.js
@@ -5,7 +5,13 @@
     Implement the function below, which will return a new array containing only article titles which will fit.
 */
 function potentialHeadlines(allArticleTitles) {
-    // TODO
+    let fitTitles = [];
+    for(let i in allArticleTitles){
+        if(allArticleTitles[i].length<=65){
+            fitTitles.push(allArticleTitles[i])
+        }
+    }
+    return fitTitles
 }
 
 /*
@@ -14,24 +20,48 @@ function potentialHeadlines(allArticleTitles) {
     (you can assume words will always be seperated by a space)
 */
 function titleWithFewestWords(allArticleTitles) {
-    // TODO
-}
+    let lengthOfTitles = []
+    for(let i in allArticleTitles){
+        lengthOfTitles.push(allArticleTitles[i].split(" ").length)
+    }
+    let minimumTitlesIndex = lengthOfTitles.indexOf(Math.min(...lengthOfTitles))
+    return allArticleTitles[minimumTitlesIndex]
+
+    }
+
 
 /*
     The editor of the FT has realised that headlines which have numbers in them get more clicks!
     Implement the function below to return a new array containing all the headlines which contain a number.
     (Hint: remember that you can also loop through the characters of a string if you need to)
 */
 function headlinesWithNumbers(allArticleTitles) {
-    // TODO
-}
+    let output = []
+    for(let i in allArticleTitles){
+
+        if(allArticleTitles[i].match(/[0-9]/g) !== null){
+            output.push(allArticleTitles[i])
+        }
+
+    }
+    return output
+ }
 
 /*
     The Financial Times wants to understand what the average number of characters in an article title is.
     Implement the function below to return this number - rounded to the nearest integer.
 */
 function averageNumberOfCharacters(allArticleTitles) {
-    // TODO
+    let allIntegers = []
+    for(let i in allArticleTitles){
+        allIntegers.push(allArticleTitles[i].length)
+    }
+    let total = 0;
+    for(let i = 0; i < allIntegers.length; i++) {
+    total += allIntegers[i];
+    }
+    let average = total / allIntegers.length;
+    return Math.round(average)
 }
 
 

diff --git a/2-mandatory/4-stocks.js b/2-mandatory/4-stocks.js
@@ -34,7 +34,18 @@ const CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS = [
         Functions can help with this!
 */
 function getAveragePrices(closingPricesForAllStocks) {
-    // TODO
+
+    let arrayOfAverage = []
+    for(let i of closingPricesForAllStocks){
+        let total = 0;
+        for(let j in i){   
+        total += i[j];  
+        }
+        let a = total/i.length;
+        let b = Number(a.toFixed(2))
+        arrayOfAverage.push(b) 
+    }
+    return arrayOfAverage
 }
 
 /*
@@ -48,7 +59,12 @@ function getAveragePrices(closingPricesForAllStocks) {
     The price change value should be rounded to 2 decimal places, and should be a number (not a string)
 */
 function getPriceChanges(closingPricesForAllStocks) {
-    // TODO
+    let priceChanges = []
+    for(let array of closingPricesForAllStocks){
+      let output = array[array.length-1]-array[0];
+      priceChanges.push(Number(output.toFixed(2)))
+    }
+    return priceChanges
 }
 
 /*
@@ -64,7 +80,14 @@ function getPriceChanges(closingPricesForAllStocks) {
     The price should be shown with exactly 2 decimal places.
 */
 function highestPriceDescriptions(closingPricesForAllStocks, stocks) {
-    // TODO
+    let returnThisArray = []
+    for(let index in closingPricesForAllStocks){
+        let largestNumber = Math.max(...closingPricesForAllStocks[index]);
+        let outputWithQuote = `The highest price of ${stocks[index].toUpperCase()} in the last 5 days was ${largestNumber.toFixed(2)}`
+        returnThisArray.push(outputWithQuote)
+    }
+    return returnThisArray
+
 }
 
 

diff --git a/3-extra/1-factorial.js b/3-extra/1-factorial.js
@@ -9,7 +9,11 @@
 */
 
 function factorial(input) {
-    // TODO
+    let total = 1;
+    for(let index=input;index>0;index--){
+       total *= index 
+    }
+    return total
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

diff --git a/3-extra/2-array-of-objects.js b/3-extra/2-array-of-objects.js
@@ -11,7 +11,11 @@
 */
 
 function getHighestRatedInEachGenre(books) {
-    // TODO
+    for(let everyObjects of books){
+        for(let key of everyObjects){
+
+        }
+    }
 }
 
 

diff --git a/3-extra/3-fibonacci.js b/3-extra/3-fibonacci.js
@@ -14,7 +14,12 @@
 */
 
 function generateFibonacciSequence(n) {
-    // TODO
+    let fib = [0,1];
+
+    for(let index = 0; fib.length<n;index++){
+        fib.push(fib[index]+fib[index+1])
+    }
+    return fib
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
-Original file line number
+Diff line change
@@ Expand Up / @@ -11,7 +11,11 @@ @@
     */
     function getHighestRatedInEachGenre(books) {
-        // TODO
+        for(let everyObjects of books){
+            for(let key of everyObjects){
+            }
+        }
     }
@@ Expand Down @@